Well, if you are clever, everything you need is on the header for JP1 - JP5.
One side of the 10-pin jumper is Ground, so that is covered.
JP5 has Vcc (5V) coming through R7 (2.2k ohms), so current limited.
So by jumper-ing R7 and removing R12, you could have 5V on one side of JP5 and ground on the other.
That provides a 10-pin (2x5) connector for 4 sensors with grounds with signal and ground.
If you don't use more than 3 sensors, you can still use JP1 for bank switching.
Again, much easier to do on the KIT version.
It appears the MTT4B has a straight 7-pin header with Vcc, Ground, and the 5 analog input pins.
It does not appear to have the resistor on Vcc.
That would be even easier for analog inputs!
For I2C, the TT4 family, the firmware doesn't support that.?
